specs/PhaseLifecycleUseCases.md enumerates all nine use cases from the
workplan systematically, grounded in the actual schema, code, and the
three real pilot-candidate manifests rather than abstractly. Two
findings surfaced beyond the original scope: first-Phase and
successive-Phase provenance turn out to be one shared modeling
question (both feed T02), and breach-record publication already has a
decided Operator+ rights tier per the Control Plane concept doc while
extension registration/canonicalization does not — recorded as an
explicit open question for WP-0014-T01 instead of an assumption.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>